SUMMARY
Kate seems to issue `textDocument/documentSymbol` requests without checking if the LSP server (asm-lsp in this case) supports this part of the protocol. 

STEPS TO REPRODUCE
1. Use code:
```nasm
section .bss
    input_char resb 1   ; Reserve 1 byte for the input character

; registers
; r12 num a

section .data
    total dq 0    ; the total sum
    num dq 0      ; entry integer
    print_char db 0

section .text
    global _start

is_digit:
    ; check if value of input_char is a digit
    cmp byte [input_char], '0'
    jl not_digit
    cmp byte [input_char], '9'
    jg not_digit

    mov rax, 1
    ret

not_digit:
    xor rax, rax; set 0
    ret

error:
    mov rax, 60
    mov rdi, 1
    syscall

read_char:
    ; Read a single character
    mov rax, 0          ; sys_read
    mov rdi, 0          ; fd 0 (standard input)
    mov rsi, input_char ; ptr to input
    mov rdx, 1          ; number of bytes to read
    syscall
    ret

sum:
    add [total], r12
    mov r12, 0
    ret

number_input:
    call read_char
    cmp byte [input_char], 10 ; \n
    je sum
    cmp byte [input_char], -1 ; EOF
    je error
    call is_digit
    cmp rax, 0
    je error
    call is_digit
    je append_number
append_number:
    imul r12, 10
    sub byte [input_char], '0' ; char to num
    movzx r13, byte [input_char] ; zero-extend the byte to 64 bits
    add r12, r13
    call number_input
    ret

reverse_number:
    mov r13, rdi ; r13 = input number
    xor r14, r14 ; r14 = 0
    call reverse_loop
    mov rax, r14
    ret
reverse_loop:
    imul r14, r14, 10
    mov rax, r13
    xor rdx, rdx
    mov rcx, 10
    div rcx
    add r14, rdx
    mov r13, rax
    cmp r13, 0
    jg reverse_loop    ; continue loop if r13 > 0
    ret

print_number:
    call reverse_number
    mov r13, rax ; number to print/decrement
    call print_number_loop
    ret
print_number_loop:
    ; divide r13 and puts it back with 1 less digit on right
    mov rax, r13
    mov rcx, 10
    mov rdx, 0
    div rcx
    mov r13, rax
    ; print remainder
    mov [print_char], rdx;
    add byte [print_char], '0'
    mov rax, 1          ; sys_write system call number
    mov rdi, 1          ; file descriptor 1 (stdout)
    mov rsi, print_char      ; pointer to the character
    mov rdx, 1          ; number of bytes to write
    syscall
    cmp r13, 0
    jg print_number_loop    ; continue loop if r13 > 0
    ret

_start:
    call number_input
    call number_input
    call sum

    mov rdi, [total]
    call print_number

    mov [print_char], byte 10 ; newline
    mov rax, 1
    mov rdi, 1
    mov rsi, print_char
    mov rdx, 1
    syscall

    mov rax, 60    ; System call number for sys_exit
    mov rdi, 0     ; Exit code 0
    syscall
```
2. Use asm-lsp (https://github.com/bergercookie/asm-lsp)
3. Open "Output" view using the button in the bottom-left corner

OBSERVED RESULT
```
[09:42:51  LSP Client Log] Started server asm-lsp@/home/user: /home/user/.cargo/bin/asm-lsp
[09:42:51  LSP Server Log] asm-lsp@/home/user
INFO [asm_lsp] Starting LSP server...
[09:42:51  LSP Server Log] asm-lsp@/home/user
INFO [asm_lsp] Populating register set -> x86...
[09:42:51  LSP Server Log] asm-lsp@/home/user
INFO [asm_lsp] Populating register set -> x86_64...
[09:42:51  LSP Server Log] asm-lsp@/home/user
INFO [asm_lsp] Populating instruction set -> x86...
[09:42:51  LSP Server Log] asm-lsp@/home/user
INFO [asm_lsp::x86_parser] Fetching html page containing further documentation, from the cache -> /home/user/.cache/asm-lsp/x86_instr_docs.html...
[09:42:51  LSP Server Log] asm-lsp@/home/user
INFO [asm_lsp] Populating instruction set -> x86_64...
[09:42:51  LSP Server Log] asm-lsp@/home/user
INFO [asm_lsp::x86_parser] Fetching html page containing further documentation, from the cache -> /home/user/.cache/asm-lsp/x86_instr_docs.html...
[09:42:51  LSP Server Log] asm-lsp@/home/user
INFO [asm_lsp] Populating register set -> x86...
[09:42:51  LSP Server Log] asm-lsp@/home/user
INFO [asm_lsp] Populating register set -> x86_64...
[09:42:51  LSP Server Log] asm-lsp@/home/user
INFO [asm_lsp] Starting LSP loop...
[09:42:51  LSP Server Log] asm-lsp@/home/user
ERROR [asm_lsp] Invalid request fromat -> Request {
    id: RequestId(
        I32(
            2,
        ),
    ),
    method: "textDocument/documentSymbol",
    params: Object {
        "textDocument": Object {
            "uri": String("file:///home/user/Programming/ASM/Sum/sum.asm"),
        },
    },
}
[09:42:52  LSP Server Log] asm-lsp@/home/user
ERROR [asm_lsp] Invalid request fromat -> Request {
    id: RequestId(
        I32(
            3,
        ),
    ),
    method: "textDocument/documentSymbol",
    params: Object {
        "textDocument": Object {
            "uri": String("file:///home/user/Programming/ASM/Sum/sum.asm"),
        },
    },
}
```

EXPECTED RESULT
No unsupported requests

SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20231228
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.113.0
Qt Version: 5.15.11
Kernel Version: 6.6.7-1-default (64-bit)
Graphics Platform: X11

ADDITIONAL INFORMATION
Issue on LSP server gitforge: https://github.com/bergercookie/asm-lsp/issues/58